#6 What coloured gem requires another coloured gem to get in "Crash Bandicoot"?

#7 How many gems and keys, in total, are there in "Crash Bandicoot"?

#8 Which one of the following bosses has the most vital points in "Crash Bandicoot"?

Papu PapuRipper RooKoala KongPinstripeNitrus Brio

#9 What level has the same theme as the level "Temple Ruins" in "Crash Bandicoot"?

Lights OutFumbling In the DarkJaws Of DarknessCastle MachineryThe Lab

#10 If you beat the game by collecting all gems and going through "The Great Hall", in the ending you see Crash and Tawna riding a bird.
You also encounter this bird in a certain level as a "friendly enemy". What level is it?